
Fix Windows Update 502 Bad Gateway Due to DNS Configuration
If you see a '502 Bad Gateway' error when running Windows Update, the problem is often on the net...

If you see a '502 Bad Gateway' error when running Windows Update, the problem is often on the net...

When Windows Update reports a version mismatch, you might see errors like 0x800f0922...

If scheduled tasks aren't running or you see an error like "Task Scheduler service is not availab...

You open Windows Security, go to Virus & threat protection, and see Real-time protection is turne...

You go to install a Windows Update and get an error like 0x80073712 or 0x80070...

You open Task Manager and see Windows Security (the process is MsMpEng.exe) using 500 MB or more ...